G. TROUBLE SHOOTING HINTS
NO NO
YES YES
YES
YES
NO
NO
High Voltage !
NO
YES
YES
NO
NO
YES
No Display
( Black )
LED ON
?
Push the power
ON/OFF
switch
LED Color
change ?
Check main board
U4/Pin201
Hi / Lo under
push power sw?
Back light
ON?
To Step 2
Make sure the
connection of
Inverter is fine
+12V ?
Check the
J1
/Pin1 of
Inverter
Check
F1(Fuse) of inverter
B
Display ?
OK !
A
To Step 2
Power
adapter ?
Change
adapter
Summary of Contents for AL732
Page 1: ...AL732 Service Manual ...
Page 8: ...E CONDUCTION VIEW MAIN BOARD Component Side ...
Page 9: ...MAIN BOARD Solder Side ...
Page 10: ...CONTROL BOARD Component Side CONTROL BOARD Solid Side ...
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Page 20: ...H REPLACEMENT PARTS LIST NO Parts No Description Part Location Q ty ...
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Page 31: ...J SCHEMATIC DIAGRAM ...
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